CN110862277A - Organic waste biological drying treatment fermentation box - Google Patents

Organic waste biological drying treatment fermentation box Download PDF

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Publication number
CN110862277A
CN110862277A CN201911288401.0A CN201911288401A CN110862277A CN 110862277 A CN110862277 A CN 110862277A CN 201911288401 A CN201911288401 A CN 201911288401A CN 110862277 A CN110862277 A CN 110862277A
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CN
China
Prior art keywords
fermentation box
chain net
box body
hot air
feeding
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Pending
Application number
CN201911288401.0A
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Chinese (zh)
Inventor
王立超
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Shandong Wanggong Environmental Protection Technology Co Ltd
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Shandong Wanggong Environmental Protection Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Priority to CN201911288401.0A priority Critical patent/CN110862277A/en
Publication of CN110862277A publication Critical patent/CN110862277A/en
Pending legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05FORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F3/00Fertilisers from human or animal excrements, e.g. manure
    • C05F3/06Apparatus for the manufacture
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/20Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses

Abstract

The invention relates to a fermentation box for biological drying treatment of organic wastes, which comprises a fermentation box body, and a chain net mechanism, a turning mechanism and an air heater mechanism which are arranged in the fermentation box body; the fermentation box body comprises a feeding hole and a discharging hole; the chain net mechanisms comprise at least two layers, each layer of chain net mechanism is respectively positioned at different heights, and the feeding ends and the discharging ends of each layer of chain net mechanism are distributed in a staggered manner and are arranged corresponding to the feeding holes and the discharging holes; the turning mechanism is positioned at the upper part of the feeding end of any one or more layers of the chain net mechanisms; the hot air blower mechanism comprises a hot air blower body and a plurality of hot air outlets connected with an air outlet of the hot air blower body, and the hot air outlets are respectively arranged towards the feeding end of any one or more layers of the chain net mechanism; the invention has reasonable structural design, realizes the action matching of the turning mechanism and the air heater mechanism by the installation of the turning mechanism and the air heater mechanism, realizes heating and oxygen supply in the turning process, and can directly introduce oxygen into the organic waste to be fermented.

Description

Organic waste biological drying treatment fermentation box
Technical Field
The invention relates to the field of fermentation of livestock and poultry manure, in particular to a fermentation box for biological drying treatment of organic wastes.
Background
At present, in the field of livestock and poultry breeding, the treatment of livestock and poultry manure is always a difficult problem in the industry, the livestock and poultry manure has the defects of low fermentation speed and complex steps in the composting process, the manure fermentation is not facilitated to be rapidly generated, the fermentation needs to occupy a large field, the construction investment cost of buildings is huge, the large-scale treatment is difficult, the treatment cost is high, and the investment return period is long.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides the fermentation box for the biological drying treatment of the organic wastes, which realizes the functions through unit equipment and has the advantages of low cost and small volume.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a fermentation box for biological drying treatment of organic wastes is characterized by comprising a fermentation box body, and a chain net mechanism, a turning mechanism and an air heater mechanism which are arranged in the fermentation box body;
the fermentation box body comprises a feeding hole and a discharging hole;
the chain net mechanisms comprise at least two layers, each layer of chain net mechanism is respectively positioned at different heights, and the feeding ends and the discharging ends of each layer of chain net mechanism are distributed in a staggered manner and are arranged corresponding to the feeding holes and the discharging holes;
the turning mechanism is positioned at the upper part of the feeding end of any one or more layers of the chain net mechanisms, and is a turning shaft with blades on the surface;
the hot air blower mechanism comprises a hot air blower body and a plurality of hot air outlets connected with an air outlet of the hot air blower body, and the hot air outlets are respectively arranged towards the feeding end of the chain net mechanism of any one layer or a plurality of layers.
A conveying channel is formed between two adjacent layers of the chain net mechanism, material baffles are arranged on two sides of the conveying channel respectively, the bottom ends of the material baffles are close to the lower portions of the material baffles, the surface of the chain net mechanism is arranged, and the outer sides of the material baffles are fixedly connected with the inner wall of the fermentation box body.
Still included install inside oxygen suppliment mechanism of fermenting case body, including oxygen suppliment fan and oxygen suppliment wind channel, the air intake of oxygen suppliment fan with air intake connection on the fermenting case body lateral wall, the air outlet of oxygen suppliment fan with the oxygen suppliment wind channel is connected, and the oxygen suppliment wind channel is located at least one deck respectively chain net mechanism one side or both sides are equipped with the oxygen suppliment mouth towards the inside setting of chain net mechanism on the oxygen suppliment wind channel lateral wall.
The heating device is characterized by further comprising heating pipelines, wherein the heating pipelines are distributed in at least one layer of chain net mechanism, and flowing heating media are arranged in the heating pipelines.
The fermentation box comprises a fermentation box body and is characterized by further comprising an exhaust mechanism arranged inside the fermentation box body, wherein the exhaust mechanism comprises an exhaust fan and a waste gas treatment device, an air outlet of the exhaust fan is connected with an air inlet of the waste gas treatment device, and an air outlet of the waste gas treatment device is connected with an air outlet in the side wall of the fermentation box body.
The hot air blower mechanisms are at least two groups and are respectively positioned at the outer sides of the two ends of the chain net mechanism in the fermentation box body.
The chain net mechanism adopts a metal net belt, two sides of the metal net belt are respectively connected with chains, and a reinforcing rod connected and fixed with the chains is further arranged between the chains.
The fermentation box body is including being located inside steel structure support, and install the heat preservation panel on steel structure support surface.
Still include a feeding case, the feeding case is installed the feed inlet outside of fermenting case body, the top of feeding case is equipped with an opening, the feeding case in the opening both sides be equipped with the guide rail and with guide rail sliding connection's apron, apron both sides are equipped with interconnect's walking wheel and driving motor, the walking wheel set up in on the guide rail.
The invention has the beneficial effects that: structural design is reasonable, realizes its action cooperation through the installation of turning over throwing mechanism and air heater mechanism, realizes heating oxygen suppliment at turning over throwing in-process, realizes multiple oxygen of exposing to the sun through air heater mechanism and oxygen suppliment mechanism simultaneously, can directly let in the organic waste of treating the fermentation with oxygen inside, can also keep the constant temperature state and be used for abundant fermentation, whole area is little, and is with low costs, and easy operation is convenient.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a schematic front view of the present invention.
Fig. 2 is a schematic front sectional view of the present invention.
Fig. 3 is a schematic side sectional view of the present invention.
FIG. 4 is a schematic view of the internal axis measurement configuration of the present invention.
Fig. 5 is a partial structural view of "a" in fig. 2.
Fig. 6 is a partial structural view of "B" in fig. 2.
Fig. 7 is a partial structural schematic view of the chain net mechanism.
In the figure: 100 fermentation box bodies, 101 feeding holes, 102 discharging holes, 103 steel structure supports, 104 heat preservation panels, 105 material baffles, 200 feeding boxes, 201 cover plates, 202 travelling wheels, 203 driving motors, 204 guide rails, 300 chain net mechanisms, 301 metal net belts, 302 driving shafts, 303 driven shafts, 304 speed reducing motors, 305 reinforcing rods, 306 chains, 401 turning shafts, 402 blades, 501 air heater bodies, 502 hot air ports, 601 oxygen supply fans, 602 oxygen supply air channels, 701 exhaust fans, 702 waste gas treatment devices and 800 heating pipelines.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
According to the illustrations of fig. 1 to 7: the embodiment provides an organic waste biological drying treatment fermentation box, including fermentation box body 100 and install its inside chain net mechanism 300, turn over throwing mechanism and air heater mechanism, wherein:
the fermentation box body 100 comprises a steel structure support 103 located inside and a heat insulation panel 104 installed on the surface of the steel structure support 103, an opening required for installing internal equipment is reserved on the heat insulation panel 104, the fermentation box body 100 comprises a feeding port 101 and a discharging port 102, conveying augers are respectively arranged in the feeding port 101 and the discharging port 102, the conveying augers can be used for dispersing and centralized processing of organic wastes through threaded conveying plates on the surfaces of the conveying augers, namely, the organic wastes of the feeding port 101 are uniformly distributed on the surface of a chain net mechanism 300 through dispersion, the organic wastes of the discharging port 102 are concentrated to a discharging position through concentration, the feeding port 101 is located on the right side of the top surface of the fermentation box body 100, and the discharging port 102 is located on the left side of the top surface;
furthermore, in order to ensure the tightness of the position of the feed inlet 101, the fermentation box body 100 further comprises a feed box 200, the feed box 200 is installed outside the feed inlet 101 of the fermentation box body 100, the top of the feed box 200 is provided with an opening, the length of the opening is half or less than the length of the feed box 200, so that the opening can meet the moving effect of the cover plate 201, the feed box 200 is provided with guide rails 204 at two sides of the opening, the guide rails 204 are welded on the feed box 200 by adopting angle steel, the length of the guide rails 204 is consistent with the length of the feed box 200, wherein the upper part of the feed box 200 is further provided with the cover plate 201 which is in sliding connection with the guide rails 204, the cover plate 201 is used for sealing the opening, the two sides of the cover plate 201 are provided with walking wheels 202 and driving motors 203 which are connected with each other, the walking wheels 202 are arranged on the guide rails 204, when the opening needs, the opening part is opened this moment, and corresponding feed inlet 101 can leak out for send organic waste to feed inlet 101 department through conveying equipment, thereby get into inside fermenting case body 100, when the opening is closed to needs, walking wheel 202 and driving motor 203 action, apron 201 removes to the opening outside this moment and is used for airtight opening.
The chain net mechanisms 300 comprise seven layers, the width and the length of each layer of chain net mechanism 300 are consistent, the chain net mechanisms 300 are sequentially arranged from top to bottom, the longitudinal intervals of the chain net mechanisms 300 on each layer are the same, but the chain net mechanisms 300 on the second layer, the fourth layer and the sixth layer are installed and fixed in a staggered mode on the left side, so that the feeding end and the discharging end of each layer of chain net mechanism 300 are distributed in a staggered mode, namely the discharging end of the chain net mechanism 300 on the upper layer is located on the upper portion of the feeding end of the chain net mechanism 300 on the lower layer, the feeding end of the chain net mechanism 300 on the top portion is located on the lower portion of the feeding port 101, and the discharging end of the chain net mechanism 300 on the bottom layer is located;
a conveying channel is formed between two adjacent layers of the chain net mechanism 300, material baffles 105 are respectively arranged on two sides of the conveying channel, the bottom ends of the material baffles 105 are arranged close to the surface of the chain net mechanism 300 on the lower portion of the material baffles, the outer sides of the material baffles 105 are fixedly connected with the steel structure support 103 of the fermentation box body 100 through bolts, and the material baffles 105 are used for keeping organic wastes conveyed along the surface of the chain net mechanism 300 and preventing the organic wastes from falling off from two sides of the chain net mechanism 300;
the chain net mechanism 300 adopts a metal net belt 301, two sides of the metal net belt 301 are respectively connected with a chain 306, two ends of the chain 306 are respectively connected with a driving shaft 302 and a driven shaft 303 which correspond to each other, the driving shaft 302 and the driven shaft 303 are respectively rotatably installed on the steel structure support 103 through bearing supports, wherein a support fixedly connected with the fermentation box body 100 is further installed on the outer side of the fermentation box body 100, a speed reducing motor 304 is installed on the support, the speed reducing motor 304 is connected with the driving shaft 302 through a coupler and used for driving the chain net mechanism 300 to rotate through the speed reducing motor 304, and the conveying speeds of the chain net mechanisms 300 are consistent; further, as the organic waste conveyed by the chain net mechanism 300 has high density and relatively large unit weight, in order to ensure the bearing effect of the chain net mechanism 300, reinforcing rods 305 connected and fixed with the chains 306 of the chain net mechanism 300 are also arranged between the chains 306, the reinforcing rods 305 are steel pipes, both ends of the reinforcing rods 305 are processed into flat shapes, both ends of the reinforcing rods 305 are installed on the chains 306 through fixing pieces connected with the reinforcing rods by bolts, the reinforcing rods 305 are positioned at the inner side of the chain net mechanism 300, and a group is arranged at intervals of 10-20cm and used for reinforcing the chain net mechanism 300 from the inner side, so that the chain net mechanism 300 achieves an ideal use effect.
The turning mechanism is provided with six groups and is respectively positioned at the upper part of the feeding end of the chain net mechanism 300 of the six groups at the lower part, the turning mechanism is a turning shaft 401 with a blade 402 on the surface, two ends of the turning shaft 401 are respectively rotatably arranged on the steel structure bracket 103 through bearing supports, when organic waste on the chain net mechanism 300 at the upper part falls down at the discharging end, the organic waste is contacted with the turning mechanism, the blade 402 of the turning mechanism breaks up the organic waste to obtain a turning effect, and the turning mechanism is in a free rotation state and is in a passive turning action; of course, one end of the turning and throwing shaft 401 can be connected with the driving shaft 302 of the corresponding chain net mechanism 300 through a transmission chain, so that the active rotation effect of the turning and throwing shaft 401 can be realized, and the active turning and throwing action can be realized in the contact process with the organic waste.
The hot air blower mechanisms are provided with two groups and are respectively positioned at the outer sides of two ends of the chain net mechanism 300 in the fermentation box body 100, each hot air blower mechanism comprises a hot air blower body 501 and three hot air vents 502 connected with the air outlet of the hot air blower body 501, the hot air blower bodies 501 and the hot air vents 502 are respectively arranged on the steel structure support 103 and are mutually communicated through a ventilation pipeline, the air inlets of the hot air blower bodies 501 are communicated with openings reserved on the side wall of the fermentation box body 100, the air outlets of the hot air blower bodies 501 are connected with the hot air vents 502, the hot air vents 502 are respectively arranged towards the feeding ends of six layers of the chain net mechanism 300 positioned at the lower part, the hot air vents 502 of the hot air blower mechanism positioned at the left side are correspondingly arranged with the chain net mechanisms 300 positioned at the second, fourth and sixth layers, and the chain net mechanism 300 positioned at the right side are correspondingly arranged with the chain net mechanisms, the hot air can be conveyed into the conveying channel at the upper part of each layer of the chain net mechanism 300 through the hot air blower mechanism, so as to keep the environmental temperature inside the fermentation box body 100 and simultaneously pass sufficient oxygen into the fermentation box body 100; in the operation process, because the feed ends of the chain net mechanisms 300 are provided with the turning and throwing mechanisms and are turned and thrown, the air supply effect of the air heater mechanism is supplemented, so that the fresh air temperature directly acts on the turned and thrown organic waste, the temperature of 60-80 ℃ required by the organic waste is ensured, the moisture in the organic waste can be evaporated, and the drying effect is achieved; meanwhile, in the process, aerobic organisms in the organic waste can be fully contacted with oxygen in the fresh air, so that a stable and efficient fermentation effect is achieved.
The fermentation box for the biological drying treatment of the organic wastes further comprises an oxygen supply mechanism which is arranged inside the fermentation box body 100 and comprises an oxygen supply fan 601 and an oxygen supply air channel 602, wherein the oxygen supply fan 601 and the oxygen supply air channel 602 are respectively arranged on the steel structure bracket 103, an air inlet of the oxygen supply fan 601 is connected with an opening reserved on the side wall of the fermentation box body 100, an air outlet of the oxygen supply fan 601 is connected with the oxygen supply air channel 602, the oxygen supply air channel 602 is respectively positioned at two sides of each layer of the chain net mechanism 300, an oxygen supply port facing the inside of the chain net mechanism 300 is arranged on the side wall of the oxygen supply air channel 602, when the fermentation box is used, the oxygen supply mechanism also supplies external fresh air into the fermentation box body 100, the difference between the fresh air and the hot air blower mechanism is that the fresh air has no heating treatment effect, the air supply mode and the air supply position are different, the conveying position of, on the other hand, because the temperature of the fresh air is low, the temperature inside the fermentation box body 100 can be adjusted, so that the temperature inside the fermentation box body 100 is integrally reduced, and a constant temperature effect is achieved;
the fermentation box for the biological drying treatment of the organic wastes further comprises a heating pipeline 800, the heating pipeline 800 is distributed in the three layers of the chain net mechanisms 300 located at the lower part, flowing water is arranged in the heating pipeline 800, and the water is circularly conveyed to the interior of the fermentation box body 100 in a solar water tank or other hot water tanks through a pump and is used for providing a basic heating effect for the interior of the fermentation box body 100 and keeping the basic temperature of 50-60 ℃ in the fermentation box body 100.
Organic waste biological drying handles fermenting case has still included and has installed the inside exhaust mechanism of fermenting case body 100, including air exhaust fan 701 and exhaust treatment device 702, air exhaust fan 701's air outlet with exhaust treatment device 702's air intake connection, exhaust treatment device 702's air outlet with air exit on the fermenting case body 100 lateral wall is connected, can discharge the air in fermenting case body 100 after exhaust treatment device 702 handles through air exhaust fan 701, and exhaust treatment device 702 can adopt light oxygen catalysis exhaust-gas treatment equipment for avoid the secondary pollution that exhaust emission formed.
The above description is only a preferred embodiment of the present invention, and the technical solutions to achieve the objects of the present invention by basically the same means are all within the protection scope of the present invention.

Claims (9)

1. A fermentation box for biological drying treatment of organic wastes is characterized by comprising a fermentation box body, and a chain net mechanism, a turning mechanism and an air heater mechanism which are arranged in the fermentation box body;
the fermentation box body comprises a feeding hole and a discharging hole;
the chain net mechanisms comprise at least two layers, each layer of chain net mechanism is respectively positioned at different heights, and the feeding ends and the discharging ends of each layer of chain net mechanism are distributed in a staggered manner and are arranged corresponding to the feeding holes and the discharging holes;
the turning mechanism is positioned at the upper part of the feeding end of any one or more layers of the chain net mechanisms, and is a turning shaft with blades on the surface;
the hot air blower mechanism comprises a hot air blower body and a plurality of hot air outlets connected with an air outlet of the hot air blower body, and the hot air outlets are respectively arranged towards the feeding end of the chain net mechanism of any one layer or a plurality of layers.
2. The organic waste bio-drying fermentation box according to claim 1, wherein the fermentation box comprises: a conveying channel is formed between two adjacent layers of the chain net mechanism, material baffles are arranged on two sides of the conveying channel respectively, the bottom ends of the material baffles are close to the lower portions of the material baffles, the surface of the chain net mechanism is arranged, and the outer sides of the material baffles are fixedly connected with the inner wall of the fermentation box body.
3. The organic waste bio-drying fermentation box according to claim 1, wherein the fermentation box comprises: still included install inside oxygen suppliment mechanism of fermenting case body, including oxygen suppliment fan and oxygen suppliment wind channel, the air intake of oxygen suppliment fan with air intake connection on the fermenting case body lateral wall, the air outlet of oxygen suppliment fan with the oxygen suppliment wind channel is connected, and the oxygen suppliment wind channel is located at least one deck respectively chain net mechanism one side or both sides are equipped with the oxygen suppliment mouth towards the inside setting of chain net mechanism on the oxygen suppliment wind channel lateral wall.
4. The organic waste bio-drying fermentation box according to claim 1, wherein the fermentation box comprises: the heating device is characterized by further comprising heating pipelines, wherein the heating pipelines are distributed in at least one layer of chain net mechanism, and flowing heating media are arranged in the heating pipelines.
5. The organic waste bio-drying fermentation box according to claim 1, wherein the fermentation box comprises: the fermentation box comprises a fermentation box body and is characterized by further comprising an exhaust mechanism arranged inside the fermentation box body, wherein the exhaust mechanism comprises an exhaust fan and a waste gas treatment device, an air outlet of the exhaust fan is connected with an air inlet of the waste gas treatment device, and an air outlet of the waste gas treatment device is connected with an air outlet in the side wall of the fermentation box body.
6. The organic waste bio-drying fermentation box according to claim 1, wherein the fermentation box comprises: the hot air blower mechanisms are at least two groups and are respectively positioned at the outer sides of the two ends of the chain net mechanism in the fermentation box body.
7. The organic waste bio-drying fermentation box according to claim 1, wherein the fermentation box comprises: the chain net mechanism adopts a metal net belt, two sides of the metal net belt are respectively connected with chains, and a reinforcing rod connected and fixed with the chains is further arranged between the chains.
8. The organic waste bio-drying fermentation box according to claim 1, wherein the fermentation box comprises: the fermentation box body is including being located inside steel structure support, and install the heat preservation panel on steel structure support surface.
9. The organic waste bio-drying fermentation box according to claim 1, wherein the fermentation box comprises: still include a feeding case, the feeding case is installed the feed inlet outside of fermenting case body, the top of feeding case is equipped with an opening, the feeding case in the opening both sides be equipped with the guide rail and with guide rail sliding connection's apron, apron both sides are equipped with interconnect's walking wheel and driving motor, the walking wheel set up in on the guide rail.
CN201911288401.0A 2019-12-10 2019-12-10 Organic waste biological drying treatment fermentation box Pending CN110862277A (en)

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CN201911288401.0A CN110862277A (en) 2019-12-10 2019-12-10 Organic waste biological drying treatment fermentation box

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Application Number Priority Date Filing Date Title
CN201911288401.0A CN110862277A (en) 2019-12-10 2019-12-10 Organic waste biological drying treatment fermentation box

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CN110862277A true CN110862277A (en) 2020-03-06

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02229587A (en) * 1989-03-01 1990-09-12 Miike Tekkosho:Kk Fermenting device for organic waste
CN108298791A (en) * 2018-03-22 2018-07-20 天津五洲同创空调制冷设备有限公司 A kind of novel multi-functional sludge heat pump desiccation machine
CN109020664A (en) * 2018-10-26 2018-12-18 上海农冠环保科技有限公司 A kind of decomposed Zymolysis Equipment of organic waste storehouse formula
CN109439518A (en) * 2018-12-27 2019-03-08 北京沃土天地生物科技股份有限公司 Biological dewatered machine and its drying method
CN109834105A (en) * 2018-12-29 2019-06-04 厦门市环境能源投资发展有限公司 A kind of process of the quick desiccation of rubbish from cooking
CN211111753U (en) * 2019-12-10 2020-07-28 山东王工环保科技有限公司 Organic waste biological drying treatment fermentation box

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02229587A (en) * 1989-03-01 1990-09-12 Miike Tekkosho:Kk Fermenting device for organic waste
CN108298791A (en) * 2018-03-22 2018-07-20 天津五洲同创空调制冷设备有限公司 A kind of novel multi-functional sludge heat pump desiccation machine
CN109020664A (en) * 2018-10-26 2018-12-18 上海农冠环保科技有限公司 A kind of decomposed Zymolysis Equipment of organic waste storehouse formula
CN109439518A (en) * 2018-12-27 2019-03-08 北京沃土天地生物科技股份有限公司 Biological dewatered machine and its drying method
CN109834105A (en) * 2018-12-29 2019-06-04 厦门市环境能源投资发展有限公司 A kind of process of the quick desiccation of rubbish from cooking
CN211111753U (en) * 2019-12-10 2020-07-28 山东王工环保科技有限公司 Organic waste biological drying treatment fermentation box

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